JP2004093627A - Display module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display module which can be made thin and lightweight by decreasing the number of members. <P>SOLUTION: The display module 1 has a connection member 2 having a wire for electrically connecting a mounted electronic component to a conduction terminal 5 formed at one end and a plurality of display elements 3 and 4 disposed to the connection member 2, the connection member 2 constituting base plates 8 and 9 of display parts of the respective display elements 3 and 4 in one body. The base plates 8 and 9 and the connection member 2 are used in common, so the plurality of the display elements 3 and 4 can be connected without using a flexible substrate 7. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a display module including a plurality of display elements.
[0002]
[Prior art]
2. Description of the Related Art A small liquid crystal display with low power consumption is widely used for a display unit of a small device such as a mobile phone. This liquid crystal display is generally a liquid crystal module composed of a liquid crystal panel incorporated in a main body of a device and a flexible substrate on which a wiring pattern for conducting to a segment common wiring is formed.
[0003]
Some mobile phones include a type in which a display portion of a liquid crystal, an operation panel, a receiver, and a microphone are arranged, and a type in which a foldable type is used for further miniaturization. In this foldable mobile phone, a display unit including a liquid crystal screen and a receiver, and an operation unit including an operation switch and a microphone are connected so as to be opened and closed by a hinge. However, in such a foldable mobile phone, since the liquid crystal display is not visible when folded, it is necessary to open the display to check the incoming call and other information in order to know the incoming call and other information. Therefore, recently, in order to obtain information while the display unit is folded, a device in which liquid crystal screens are arranged on both sides of the display unit has been used.
[0004]
FIG. 4 is a side sectional view of a display module according to a conventional example.
[0005]
As shown in FIG. 4, a display module 70 according to a conventional example built in a display unit includes a first liquid crystal display panel 72 fixed to a housing 71 and a second liquid crystal display panel fixed to another housing 73. The display panel 74 is arranged in an overlapping manner with the back surfaces of the housings 71 and 73 abutting on each other. Flexible substrates 75 and 76 each having a wiring pattern formed thereon are electrically connected to the first and second liquid crystal display panels 72 and 74, and are driven by driver ICs 77 and 78, respectively.
[0006]
[Problems to be solved by the invention]
However, the conventional display module 70 has a problem that the thickness is increased because the housings 71 and 73 are separately provided, and it is not possible to meet recent demands for thinning and weight reduction.
[0007]
Further, since the first and second liquid crystal display panels 72 and 74 are driven by separate driver ICs 77 and 78, there is also a problem that the number of components is increased and space is not sufficient.
[0008]
Furthermore, since the first and second liquid crystal display panels 72 and 74 are connected by the flexible substrates 75 and 76, the connection becomes unstable depending on the working state, and an excessive stress is generated when the connecting portion is bent. In addition, it may cause disconnection.
[0009]
Therefore, an object of the present invention is to provide a display module that can be formed thin and lightweight by reducing the number of members.
[0010]
[Means for Solving the Problems]
In the display module of the present invention, the flexible connection member is a display module that integrally forms a substrate of a display unit of each display element.
[0011]
According to the present invention, a display module that can be formed thin and lightweight by reducing the number of members can be obtained.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
According to the first aspect of the present invention, there is provided a flexible connection member provided with a wiring for electrically connecting a mounted electronic component to a conduction terminal formed at one end, and provided on the connection member. In a display module having a plurality of display elements, the connection member is a display module in which a substrate of a display unit of each of the display elements is integrally formed, and the substrate and the connection member Is used, so that a plurality of display elements can be connected without using a flexible substrate.
[0013]
The invention according to claim 2 is the display module according to claim 1, wherein the plurality of display elements are driven by the connection member or one driver IC provided outside. There is an effect that the driver IC is omitted, the number of components is reduced, and the cost is reduced.
[0014]
According to a third aspect of the present invention, there is provided the display module according to the first or second aspect, wherein the base material of the connection member is transparent. This has an effect that a display element can be formed without forming a portion.
[0015]
According to a fourth aspect of the present invention, the display elements are arranged at two positions of the connection member, and the wiring of one display element formed on the connection member passes through both sides of the other display element. The display module according to any one of claims 1 to 3, wherein the display module is connected to a conduction terminal, and is formed between one display element and both side parts of the other display element. The effect is that the wiring pattern to be formed can be made thicker.
[0016]
The invention according to claim 5, wherein the display element is disposed at two places of the connection member, and the wiring of one of the display elements formed on the connection member passes through one side of the other display element. The display module according to any one of claims 1 to 3, wherein the display module is connected to a conductive terminal. Since the wiring passes through one side, a space can be opened on the opposite side. Therefore, the driver IC can be easily arranged.
[0017]
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
[0018]
(First Embodiment)
1A is a front view of a display module according to a first embodiment of the present invention, FIG. 1B is a side view of the display module, and FIG. 1C is a side view when the display module is bent halfway. FIG. 2 is an explanatory view of a wiring pattern formed on a connection member of the display module.
[0019]
As shown in FIGS. 1A and 1B, a display module 1 is a liquid crystal display panel 3 or 4 which is an example of two display elements provided on a rectangular connecting member 2 made of a flexible plastic film. Are connected to the wiring formed on the connection member 2. As shown in FIG. 2, the wiring of one liquid crystal display panel 3 formed on the connection member 2 passes through both sides of the other display element, and the conductive terminal 5 provided on the other end of the connection member 2. It is connected to the.
[0020]
The conductive terminal 5 of the display module 1 is provided with a flexible substrate 7 on which one driver IC 6 for driving the liquid crystal display panels 3 and 4 is mounted.
[0021]
The liquid crystal display panels 3 and 4 have liquid crystal sealed between two substrates 8 and 9 and have a polarizing plate 10 on the front side and a reflecting plate 11 on the back side. A part of the connection member 2 is formed integrally with the back substrate 9 constituting the display section of the liquid crystal display panels 3 and 4.
[0022]
The base material of the connection member 2 has a configuration in which transparent ITO (indium / titanium oxide) (not shown) is formed on a transparent plastic substrate such as polycarbonate or the like. Can be done.
[0023]
As shown in FIG. 1C, since the connection member 2 is flexible, it can be used by being bent 180 ° between the liquid crystal display panels 3 and 4. At this time, a plate-like backlight (not shown) can be arranged between the two reflection plates 11.
[0024]
Since the connection member 2 is made of a flexible member and is integrally connected to the liquid crystal display panels 3 and 4, there is no stress concentration at the time of bending, and the disconnection is difficult. Further, the liquid crystal display panels 3 and 4 can be disposed at any angle. Also in this case, the position of the connection member 2 can be determined by adjusting the bending angle of the connection member 2. Therefore, for example, a common display module 1 can be used for a plurality of types of mobile phones having different casing designs, and versatility. Is high.
[0025]
As shown in FIG. 2, the wiring of the liquid crystal display panel 3 of the display module 1 passes through both sides of the liquid crystal display panel 4, so that the thickness of the wiring at the bent portion 12 between the liquid crystal display panels 3 and 4 is large. The thickness can be increased, and disconnection of the wiring pattern due to bending can be prevented.
[0026]
(Second embodiment)
FIG. 3 is an explanatory diagram of a wiring pattern formed on a connection member of the display module according to the second embodiment.
[0027]
The wiring pattern of one liquid crystal display panel 3 formed on the connection member 13 passes through one side of the other liquid crystal display panel 4 and is connected to the conduction terminal 5.
[0028]
With this configuration, a large space 14 having no wiring is formed on the opposite side of the wiring pattern of the liquid crystal display panel 3. Therefore, the driver IC 6 provided on the flexible substrate 7 is arranged in this space 14, May be omitted.
[0029]
In the above description, the display element is described as a liquid crystal panel. However, the present invention is not limited to this. For example, an organic EL (Electro Luminescence) display, a display using electronic ink, or the like. The same can be applied to the apparatus.
[0030]
【The invention's effect】
As described above, according to the present invention, since the connection member integrally forms the substrate of the display element, a plurality of display elements can be connected without using a flexible substrate, and the number of components is reduced to reduce the labor of assembly. , The reliability of the product can be improved.
[0031]
When a plurality of display elements are driven by one driver IC, the number of components can be reduced, the cost can be reduced, and the product can be formed compact.
[0032]
When the base material of the substrate is transparent, light can be transmitted and a display element can be formed without forming a hole, so that manufacturing is easy and strength is increased.
[0033]
When the wiring of one display element is connected to the conductive terminal by passing through both sides of the other display element, the wiring pattern can be made thicker, the disconnection can be prevented, and the reliability of the product can be improved.
[0034]
When the wiring of one display element is connected to the conduction terminal by passing through one side of the other display element, the wiring passes through one side, so that a space can be opened on the opposite side, and the driver IC can be easily arranged. Therefore, the product can be formed compactly.
[Brief description of the drawings]
1A is a front view of a display module according to a first embodiment of the present invention, FIG. 1B is a side view of the display module, and FIG. 1C is a side view of the display module when the display module is bent halfway. FIG. 2 is an explanatory view of a wiring pattern formed on a connecting member of the display module. FIG. 3 is an explanatory view of a wiring pattern formed on a connecting member of the display module according to the second embodiment of the present invention. FIG. 4 is a side sectional view of a display module according to a conventional example.
DESCRIPTION OF SYMBOLS 1 Display module 2 Connection member 3, 4 Liquid crystal display panel (display element)
5 Conduction terminal 6 Driver IC
7 Flexible substrate 8, 9 Substrate 10 Polarizer 11 Reflector 12 Bend 13 Connection member 14 Space

Claims (5)

In a display module having a flexible connection member provided with wiring for electrically connecting a mounted electronic component to a conductive terminal formed at one end, and a plurality of display elements provided on the connection member,
The display module, wherein the connection member integrally forms a substrate of a display unit of each of the display elements. The display module according to claim 1, wherein the plurality of display elements are driven by the connection member or one driver IC provided outside. The display module according to claim 1, wherein a base material of the connection member is transparent. The display elements are arranged at two positions of the connection member, and the wiring of one of the display elements formed on the connection member is connected to a conduction terminal through both sides of the other display element. The display module according to claim 1, wherein the display module is a display module. The display elements are disposed at two places of the connection member, and the wiring of one of the display elements formed on the connection member is connected to a conduction terminal through one side of the other display element. The display module according to claim 1, wherein the display module is a display module.

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