JP2002328619A - Liquid crystal module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid crystal module in which a folding process is easily conducted when folding a flexible board onto the back surface of a holder and storing the board within a prescribed size, the board can be compactly stored within the prescribed size and which can promote the deduction of the size and thickness required for electric equipment such as a portable telephone. SOLUTION: In the liquid crystal module, a liquid crystal panel 1, in which the edge sections of the longitudinal and lateral sides of the board are connected to a flexible board 2 in an electrically conductive manner, is stored in a storage recessed portion 11 formed on a synthetic resin holder 4. A first edge side board surface 2R of the board 2 and a second edge side board surface 2D are successively folded onto the back side of the holder 4 in order to store the above into the case of an equipment such as a portable telephone. An opening 2c is provided to a portion corresponding to the corner of the panel 1 on the board 2 and a recessed section 12 is formed to the second side of the holder 4. The section 12 has lock pawls 13 to lock/store the middle section of the surface 2R of the board 2 which is folded onto the rear surface of the holder 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal module used for an image display of a small electronic device such as a mobile phone.

[0002]

2. Description of the Related Art A liquid crystal module for forming an image with a liquid crystal is used in an image display section of a device such as a mobile phone. The liquid crystal module includes a glass liquid crystal module and a resin substrate as a film liquid crystal module, but the film liquid crystal module is mainly used due to recent trends in weight reduction, size reduction, and thickness reduction.

As is known, a film liquid crystal module includes a first polarizing plate, a second polarizing plate (semi-transmissive reflecting polarizing plate or total reflecting polarizing plate), and a substrate on which a common or segment electrode pattern is formed. Is electrically connected to an opposing substrate disposed opposite to the substrate to form a common or segment wiring pattern and a transparent electrode of an ITO film (a film of a compound of indium oxide and tin oxide) formed on the surface of the substrate. And a flexible substrate. Liquid crystal is sealed between the substrate and the counter substrate. First
The polarizing plate, the second polarizing plate, the substrate and the counter substrate are all made of a flexible resin, and a liquid crystal panel obtained by laminating and integrating them is assembled into a holder to form a liquid crystal module.

A flexible substrate has an electrode pattern formed on a resin film and a driver IC, etc. mounted thereon. The electrode pattern is conducted to a transparent electrode formed on the surface of the substrate, and the substrate is heated and pressed. Joined. Since the flexible board has a shape that is wider on both sides vertically and horizontally with respect to the dimensions of the holder, it is necessary to fold the widened part and the vertically expanded part of the flexible board on the back side of the holder so that they fit in the dimensions of the holder. ing.

[0005]

As described above, the flexible board is folded and assembled on the back side of the holder. However, since the flexible board is made of an elastic resin film, it is required to be folded four times. When folding, it is difficult to make a fold, and when released, it returns to its original shape with elasticity, so workability is poor. Also, the folding position is not determined by the operator, and furthermore, when the flexible substrate is folded in four, the thickness of the portion where the two flexible substrates overlap becomes thicker than the thickness of the single portion, and the four-fold portion is located on the side of the holder. Because it is difficult to fold it neatly so that it is at a right angle, it may not be possible to incorporate it into a case of a device such as a mobile phone.

Accordingly, the present invention provides an easy-to-fold and compact housing in which a flexible substrate can be folded into a predetermined size by folding it on the back surface of a holder. It is an object of the present invention to provide a liquid crystal module capable of promoting a reduction in size and thickness.

[0007]

In a liquid crystal module according to the present invention, a first polarizing plate, a counter substrate, a substrate for sealing liquid crystal between the counter substrate and a second polarizing plate are sequentially laminated. Then, a liquid crystal panel having a configuration in which a flexible substrate is conductively connected to edges of two sides in length and width directions of the substrate is stored in a storage recess formed in a holder made of synthetic resin, and a first side substrate of the flexible substrate is provided. The first side of the holder is folded at the back side of the holder with the first side of the holder as a fold line, and the substrate surface of the second side of the flexible substrate is folded into the first side.
A liquid crystal module that is folded along the second side of the holder together with the side substrate surface and folded into the back side of the holder to be housed in a case of a device, wherein an intersection of the first side and the second side of the flexible substrate is determined. A substantially quadrangular opening having a central point is formed in the flexible substrate, and an intermediate portion of the first side substrate surface of the flexible substrate folded on the back surface of the holder is locked and stored on the second side of the holder. A recess with a locking claw is formed.

According to the present invention, when the flexible substrate is folded on the back surface of the holder and stored in a predetermined size, the folding operation is easy, and the flexible substrate can be compactly stored in the predetermined size. A liquid crystal module capable of promoting the required reduction in size and thickness can be obtained.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to a first aspect of the present invention, a first polarizing plate, an opposing substrate, a substrate for sealing liquid crystal between the opposing substrate, and a second polarizing plate are provided. A liquid crystal panel having a configuration in which a flexible substrate is conductively connected to edges of two sides in length and width directions of the substrate is stored in a storage recess formed in a synthetic resin holder, and the first side of the flexible substrate is Folding the side substrate surface to the back side of the holder with the first side of the holder as a fold line, and then bending the second side substrate surface of the flexible substrate together with the folded first side substrate surface to the second side of the holder A liquid crystal module that is folded into the back side of the holder as a fold line and housed in a case of a device, wherein the substantially quadrangular opening having a center point at an intersection of the first side and the second side in the flexible substrate is formed by the above-described method. flexible And a plate, a second of said holder
On the side, a concave portion with a locking claw is formed for locking and storing an intermediate portion of the first side substrate surface of the flexible substrate folded on the back surface of the holder.

With this configuration, the first flexible substrate
When the side substrate is folded on the back side of the holder, the intermediate portion of the first side substrate surface is inserted into the concave portion with the locking claw, and the first side substrate is folded by preventing the detachment with the locking claw. It can be held and the fold fits in the recess on the second side of the holder. Next, when the second side substrate surface is folded on the back surface of the holder, the folded portion of the first side substrate surface does not overlap with the second side substrate surface, and can be finely folded.

According to a second aspect of the present invention, an adhesive member such as an adhesive tape is provided on the back surface of the holder so that the back surface of the folded first side substrate surface of the flexible substrate is adhered. By bonding the first side substrate surface to the back surface of the holder when the side substrate surface is folded on the back surface of the holder, the first side substrate surface in the folded state can be temporarily fixed.

According to a third aspect of the present invention, a backlight or a front light illumination panel is accommodated in a holder, whereby illumination means for a liquid crystal display panel can be incorporated.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG.

FIG. 1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is a view showing a shape of a holder, and FIGS. 3 to 6 are explanatory views showing an assembling process of this embodiment. In FIG. 1, reference numeral 1 denotes a liquid crystal panel, in which a first polarizing plate, a counter substrate, a substrate for sealing liquid crystal between the counter substrate and a second polarizing plate are sequentially laminated. A flexible substrate 2 is conductively connected to edges of two sides of the substrate of the liquid crystal panel 1. Reference numeral 3 denotes a backlight, which uses an EL (electroluminescence) panel as a planar light-emitting body in this figure, but it is also possible to use a light-emitting panel using an LED and a light guide plate. Reference numeral 4 denotes a holder formed with a recess for accommodating the main body of the liquid crystal panel 1 and the backlight 3 in an overlapping state.

An electrode pattern for liquid crystal display is formed on the flexible substrate 2 and a driver I is provided.
An electronic device such as C2a is mounted, and a terminal 2b for connecting to an external electrode such as a key terminal of a mobile phone is provided. In the case of this EL panel, the backlight 3 is formed with electrodes 3a and electrode terminals 3b. FIG. 2 shows details of the holder 4. 2A is a front view, and FIG.
Is a left side view, (c) is a right side view, (d) is a rear view,
(E) is an AA enlarged sectional view in (d).

In FIG. 2, reference numeral 11 denotes a storage recess for storing the liquid crystal panel 1 and the backlight 3 in an overlapped state, 12 denotes a recess for inserting an intermediate portion of the folded portion on the first side substrate surface of the flexible substrate 2, Reference numeral 13 denotes detachment preventing locking claws protruding inward on both sides of the recess 12 on the entrance side. Reference numeral 14 denotes an opening into which the electrode terminal 3b of the backlight 3 is inserted, and reference numeral 15 denotes an electrode terminal 3b inserted through the opening 14.
A recess 16 is formed on the back surface of the holder 4 by the thickness of the adhesive tape so that the back surface of the folded first side of the flexible substrate 2 is flush with the back surface of the holder 4. Reference numeral 17 denotes a recess for accommodating the thickness of the first side substrate surface of the flexible substrate 2 folded on the back surface.

Hereinafter, the step of folding the flexible substrate according to the present embodiment will be described.

First, as shown in FIG. 3 ((a) is a front view, and (b) is a rear view), the backlight 3 and the liquid crystal panel 1 are superimposed on the storage recess 11 of the holder 4, and The backlight 3 is accommodated in a state where the electrode terminal 3b passes through the opening 14 and protrudes into the terminal receiver 15. In this state,
The flexible substrate 2 is largely spread rightward and downward. In addition, in the rear view of FIG. 3B, an adhesive tape 18 is attached to the concave portion 16. Further, a quadrilateral opening 2c is provided at a position corresponding to a corner of the holder 4 on the flexible substrate 2. This opening 2c
Is provided in order to prevent the double folded portion from being torn or thickened when the flexible substrate 2 is folded twice in the horizontal direction and the vertical direction.
The following description will be given with the right substrate surface of the flexible substrate 2 as 2R and the lower substrate surface as 2D.

From the state shown in FIG. 3, the right substrate surface 2R is folded into the back side of the holder 4 using the YY line which is a side line of the holder 4 as a folding line. FIG. 4 is a rear view of the folded state. At this time, the back surface of the right substrate surface 2R is pressed against the adhesive tape 18 attached to the back surface of the holder 4 to maintain the folded state.

Next, as shown in FIG. 5, an intermediate portion of the right substrate surface 2R is fitted under the locking claw 13 of the flexible substrate 2, and the intermediate portion is housed in the concave portion 12. Even if the hand is released in this state, the right substrate surface 2R is returned to the original state of FIG. 3 by the restoring action by the elasticity of the flexible substrate 2 because the right substrate surface 2R is prevented from being detached by the locking claws 13. There is no.

Next, from the state shown in FIG. 5, the lower substrate surface 2D is folded into the back side of the holder 4 using the XX line as the lower side of the holder 4 as a folding line. FIG. 6 shows a rear view of the holder 4 in the folded state. As described above, the double-sided right substrate surface 2 of the elastic flexible substrate 2
When R is further overlapped with the lower substrate surface 2D and folded upward, a single portion of the right substrate surface 2R is housed in the concave portion 12 and is folded back by the locking claw 13, so that the bent portion becomes thick. It is possible to prevent the case from being unfolded neatly.

[0022]

As described above, according to the present invention, a substantially quadrangular opening centered on the intersection of the first side and the second side in the flexible substrate is formed in the flexible substrate, and the second side of the holder is formed. In addition, a concave portion with a locking claw for locking and storing the intermediate portion of the first side substrate surface of the flexible substrate folded on the back surface of the holder is formed, so that the flexible substrate is folded on the back surface of the holder to a predetermined size. A liquid crystal module that can be easily folded, can be compactly stored in a predetermined size, and can be reduced in size and thickness required for electric devices such as mobile phones can be obtained.

According to a second aspect of the present invention, an adhesive member such as an adhesive tape is provided on the back surface of the holder so that the back surface of the folded first side substrate surface of the flexible substrate is adhered to the first side. When the side substrate surface is folded on the back surface of the holder, the first side substrate surface in the folded state can be temporarily fixed by bonding the first side substrate surface to the back surface of the holder,
Further, workability is improved.

According to a third aspect of the present invention, a backlight or front light illuminating panel is housed in a holder, so that illuminating means for a liquid crystal display panel can be incorporated.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIGS. 2A and 2B are diagrams showing a shape of a holder according to the embodiment of the present invention, wherein FIG. 2A is a front view, FIG. 2B is a left side view, FIG. 2C is a right side view, FIG. AA enlarged sectional view in d)

FIG. 3 is an explanatory view showing an assembling process of the embodiment.

FIG. 4 is an explanatory view showing an assembling process of the embodiment.

FIG. 5 is an explanatory view showing an assembling process of the embodiment.

FIG. 6 is an explanatory view showing an assembling process of the embodiment.

[Explanation of symbols]

 Reference Signs List 1 liquid crystal panel 2 flexible substrate 2a driver IC 2b terminal 2c opening 3 backlight 3a electrode 3b electrode terminal 4 holder 11 storage recess 12 recess 13 locking claw 14 opening 15 terminal receiving 16 recess 17 recess 18 adhesive tape

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G02F 1/13357 G02F 1/13357 1/1345 1/1345 H04M 1/02 H04M 1/02 ACF term ( Reference) 2H089 HA40 QA11 QA12 TA18 2H091 FA44Z FA45Z FD11 GA01 GA11 LA11 LA12 2H092 GA50 NA27 PA01 PA06 PA13 5G435 AA17 AA18 BB12 BB15 BB16 EE04 EE07 EE22 EE25 EE34 EE36 EE40 EE47 KK03 LL

Claims (3)

[Claims] 1. A first polarizing plate, an opposing substrate, a substrate for sealing liquid crystal between the opposing substrate, and a second polarizing plate are sequentially laminated, and two vertical and horizontal edges of the substrate are provided. A liquid crystal panel having a configuration in which a flexible substrate is conductively connected is housed in a housing recess formed in a holder made of a synthetic resin, and the first side of the flexible substrate is folded along the first side of the holder. Folding the back side of the holder, and then folding the second side board surface of the flexible board together with the folded first side board surface to the back side of the holder with the second side of the holder as a fold line, and the case of the device A substantially quadrangular opening centered on the intersection of the first side and the second side of the flexible substrate is formed in the flexible substrate, and the second side of the holder is Liquid crystal module being characterized in that the intermediate portion of the first side-side substrate surface of the flexible substrate that is folded to the rear surface of the holder forms a locking claw recess for locking-housing. 2. The liquid crystal module according to claim 1, wherein an adhesive member such as an adhesive tape is provided on the back surface of the holder, the adhesive member being attached to the back surface of the folded first side substrate surface of the flexible substrate. 3. The liquid crystal module according to claim 1, wherein a backlight or a front light illumination panel is housed in the holder.