JP7622742B2 - Display module and display device - Google Patents

Description

The present disclosure relates to a display module and a sensor module in which multiple flexible members, each of which includes a plurality of functional elements, are provided on a single flexible support member, and a display device including such a display module.

To date, large-sized display devices have been proposed that combine multiple liquid crystal display panels vertically and horizontally (see, for example, Patent Document 1). LED display devices have also been proposed that connect multiple LED boards, each of which has multiple LED (light emitting diode) elements mounted on it (see, for example, Patent Document 2).

JP 2004-37590 A JP 2001-305980 A

However, it is desirable for such display devices to have excellent display performance and ease of handling even when the screen is large.

Therefore, there is a demand for a display device that combines excellent performance with excellent ease of handling, as well as a display module and a sensor module that are applied to the display device.

A display module according to one embodiment of the present disclosure has a flexible support member including a first surface, and a plurality of flexible display members each including a plurality of display elements arranged along the first surface, the display members being arranged on the first surface without overlapping one another.

1 is a schematic front view illustrating an example of an overall configuration of a display module according to a first embodiment of the present disclosure. 2 is a cross-sectional view illustrating an example of a cross-sectional configuration of the display module illustrated in FIG. 1 . 3 is an enlarged cross-sectional view showing the vicinity of a gap of the display module shown in FIG. 2 . 2 is a schematic front view showing an example of the overall configuration of a display device including a plurality of the display modules shown in FIG. 1 ; 4 is a cross-sectional view illustrating an example of a cross-sectional configuration of a first modified example of the display module illustrated in FIG. 1. 1. FIG. 4 is a cross-sectional view illustrating an example of a cross-sectional configuration of a second modified example of the display module illustrated in FIG. FIG. 11 is a cross-sectional view illustrating an example of an overall configuration of a display module according to a second embodiment of the present disclosure. 8 is a first enlarged cross-sectional view showing an enlarged connection portion between display panels in the display module shown in FIG. 7 . 8 is a second enlarged cross-sectional view showing an enlarged connection portion between display panels in the display module shown in FIG. 7 . FIG. 13 is a schematic diagram illustrating an example of an overall configuration of a sensor device according to a third embodiment of the present disclosure. 10 is a cross-sectional view illustrating an example of a cross-sectional configuration of the sensor module illustrated in FIG. 9 . FIG. 13 is a plan view illustrating a planar shape of a display panel according to another modified example of the present disclosure. FIG. 13 is a plan view illustrating a planar shape of a display panel according to another modified example of the present disclosure.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. The description will be made in the following order.
1. First embodiment: An example of a display module and a display device in which a plurality of display panels are mounted on a common wiring substrate without overlapping each other.
1.1 Basic form 1.2 First modified example 1.3 Second modified example 2. Second embodiment: An example of a display module and a display device in which a plurality of display panels are mounted on a common wiring substrate so as to partially overlap each other.
2.1 Basic form 2.2 First modified example 3. Third embodiment: An example of a sensor module and a sensor device in which a plurality of sensor panels are mounted on a common wiring substrate.
4. Other Modifications

1. First embodiment
<<1.1 Basic form>>
[Configuration of display module 1]
Fig. 1 is a front view showing a schematic overall configuration of a display module 1 according to a first embodiment of the present disclosure. Fig. 2 is a cross-sectional view showing an example of the cross-sectional configuration of the display module 1 shown in Fig. 1, showing a cross section taken along the line II-II shown in Fig. 1.

The display module 1 is used, for example, as a thin television device, and is installed, for example, on a wall surface indoors or outdoors. As shown in FIG. 1 and FIG. 2, the display module 1 has one common wiring board 10 as a flexible support member, a plurality of display panels 20 as flexible display members, and a heat dissipation film 30 as a flexible heat dissipation substrate. Note that FIG. 1 shows, as an example, a display module 1 having a total of nine display panels 20, with three display panels 20 arranged in each of the X-axis direction and the Y-axis direction. Specifically, FIG. 1 illustrates a case in which a row of display panels 20A1 to 20A3 arranged in the Y-axis direction, a row of display panels 20B1 to 20B3 arranged in the Y-axis direction, and a row of display panels 20C1 to 20C3 arranged in the Y-axis direction are arranged in the X-axis direction. Note that, for convenience, different reference symbols are given to the display panels 20 in FIG. 1, but they have substantially the same configuration and there is no substantial difference. 2 shows a cross section of a row of display panels 20A1, 20B1, and 20C1 arranged in the X-axis direction among the plurality of display panels 20, the other rows of display panels 20 also have substantially the same cross sections.

(Common wiring substrate 10)
The common wiring board 10 is an insulating resin film having excellent flexibility, mainly composed of polyimide, and has a surface 10S1 facing the display panel 20, and a back surface 10S2 opposite the surface 10S1 and facing the heat dissipation film 30. In addition to polyimide, PET (polyethylene terephthalate) and acrylic resin are suitable as materials for forming the common wiring board 10. On the surface 10S1 of the common wiring board 10, a plurality of wirings 11 connected to the plurality of display panels 20, a plurality of terminals 12 connected to the ends of the plurality of wirings 11, and a plurality of alignment marks 13 are provided. The alignment marks 13 are marks that serve as a reference for alignment when arranging the plurality of display panels 20, and may be structures protruding from the surface 10S1 or may be printed on the surface 10S1. The alignment marks 13 are provided in gaps GP formed between the plurality of display panels 20. 1, one wiring 11 and one terminal 12 are shown for each row of the display panels 20 aligned in the X-axis direction, but in reality, a plurality of wirings 11 and a plurality of terminals 12 are provided. In this specification, the region of the common wiring substrate 10 where the plurality of display panels 20 are provided is referred to as a display region R1, and the region where the plurality of terminals 12 are provided is referred to as a terminal region R2.

(Display Panel 20)
The display panels 20 each include a plurality of display elements 23 arranged along the surface 10S1, and are arranged on the surface 10S1 without overlapping each other. The display panels 20 may be spaced apart from each other to form a gap GP in both the X-axis direction and the Y-axis direction. Fig. 3 shows an enlarged view of the portion of the display module 1 enclosed by the dashed line in Fig. 2.

3, among the multiple display elements 23 provided on each of the display panels 20A and 20B, the outermost display elements 23A and 23B arranged closest to the edges 20AT and 20BT of the display panel 20 are preferably arranged at distances LA and LB from the edges 20AT and 20BT that are less than half the arrangement pitch P of the multiple display elements 23. Furthermore, it is more preferable to satisfy the following conditional formula (1). However, in conditional formula (1), W is the width of the gap GP between adjacent display panels 20, L is the distances LA and LB from the edges 20AT and 20BT of the display panel 20 to the positions of the outermost display elements 23A and 23B, and P is the arrangement pitch of the multiple display elements 23.

W+2×L≦P……(1)

The display element 23 is a self-luminous element, and includes, for example, a light-emitting diode (LED). For example, one red (R) LED, one green (G) LED, and one blue (B) LED are provided in one display element 23. The display element 23 may be, for example, an organic electroluminescence (EL) element.

In addition, in the display module 1, some or all of the multiple display panels 20 may further include, for example, a sensor element 26, as shown in FIG. 2. The sensor element 26 is, for example, an optical sensor that detects light, such as a light receiving element or an image capturing element. The sensor element 26 may be a pressure sensor, a piezoelectric sensor, a temperature sensor, a vibration sensor, or a touch sensor. The sensor element 26 may further have a drive element including a control circuit, such as an IC, for driving the sensor.

2, the display panel 20 has a support 21 that supports a plurality of display elements 23, and a plurality of wirings 22 provided on the surface 21S1 of the support 21 and connected to each of the plurality of display elements 23. The support 21 is located on the opposite side to the surface 21S1 and further includes a back surface 21S2 that faces the common wiring board 10. The support 21 is formed by applying an insulating layer 21B such as a resin to a base material 21A that is an insulating resin film such as polyimide. The display panel 20 further has a plurality of pads 24 provided on the back surface 21S2, and a plurality of vias 25 that penetrate the support 21 in the thickness direction, i.e., the Z-axis direction, and connect the plurality of wirings 22 and the plurality of pads 24, respectively.

(Heat dissipation film 30)
The heat dissipation film 30 as a flexible heat dissipation substrate is, for example, a material having excellent thermal conductivity and flexibility, specifically, an aluminum thin plate or aluminum foil, a copper thin plate or copper foil, a highly thermally conductive graphite sheet, or a heat dissipation silicone sheet. The heat dissipation film 30 is provided with heat dissipation wiring 31. The heat dissipation wiring is made of a metal material having high thermal conductivity, such as copper or aluminum, and is provided from the multiple display elements 23 to the heat dissipation film 30. Specifically, as shown in FIG. 3, the heat dissipation wiring 31 includes a pad 311 in contact with the display element 23, a via 312 penetrating the display panel 20 and the common wiring substrate 10, and a wiring 313 formed on the surface of the heat dissipation film 30.

[Configuration of display device 100]
Next, the configuration of the display device 100 of the present disclosure will be described with reference to Fig. 4. Fig. 4 is a front view that diagrammatically illustrates an example of the overall configuration of the display device 100.

As shown in FIG. 4, the display device 100 includes a plurality of display modules 1 connected to each other. FIG. 4 illustrates, as an example, a display device 100 having a total of nine display modules 1, with three display modules 1 arranged in each of the X-axis direction and the Y-axis direction. Specifically, FIG. 1 illustrates a case in which a row of display modules 1A1 to 1A3 arranged in the Y-axis direction, a row of display modules 1B1 to 1B3 arranged in the Y-axis direction, and a row of display modules 1C1 to 1C3 arranged in the Y-axis direction are arranged in the X-axis direction. Note that, for convenience, different reference symbols are assigned to the display modules 1 in FIG. 4, but they have substantially the same configuration and there is no substantial difference. The plurality of display modules 1 are connected in a state in which parts of the common wiring substrate 10 overlap each other. For example, in the connection between the display module 1A1 and the display module 1B1 arranged in the X-axis direction, the terminal region R2 of the display module 1A1 and the left end portion of the display region R1 of the display module 1B1 are connected so as to overlap each other. In addition, when connecting the display module 1A1 and the display module 1A2 arranged in the Y-axis direction, the upper end portion of the common wiring substrate 10 of the display module 1A1 and the lower end portion of the common wiring substrate 10 of the display module 1A2 are connected to overlap each other. However, the method of connecting the multiple display modules 1 is not limited to this.

[Action and Effects]
In this way, in the display module 1 of the present embodiment and the display device 100 including the same, the multiple display panels 20 are provided on one common wiring substrate 10 without overlapping each other, so that no step occurs at the joints between the display panels 20. This provides excellent visibility of the display image. Furthermore, the entire display module 1 and the entire display device 100 can be made thin and have excellent flexibility. Therefore, the display module 1 and the display device 100 can have both excellent display performance and excellent handleability even when they are enlarged.

Furthermore, in the display module 1, multiple display panels 20 are individually arranged on a single common wiring substrate 10. In other words, the multiple display panels 20 are not directly connected to each other. Therefore, even if thermal expansion occurs in each display panel 20 due to heat generation during operation, the effect of that thermal expansion on distortion of the entire display module 1 can be reduced.

In addition, in this embodiment, the multiple display panels 20 are arranged to be spaced apart from each other along the surface 10S1. Therefore, compared to a case where the multiple display panels 20 are arranged to abut against each other, even if thermal expansion occurs due to heat generation during operation, the distortion caused by the display panels 20 to each other can be further reduced.

In addition, in this embodiment, as shown in FIG. 3, the outermost display elements 23A and 23B, which are arranged closest to the edges 20AT and 20BT of the display panel 20, are arranged at distances LA and LB from the edges 20AT and 20BT, which are less than half the arrangement pitch P. Therefore, the distance between the outermost display element 23A and the outermost display element 23B adjacent to each other across the gap GP can be made closer to the arrangement pitch P. In particular, when the conditional formula (1) is satisfied, the distance between the outermost display element 23A and the outermost display element 23B adjacent to each other across the gap GP is less than the arrangement pitch P of the display elements 23. Therefore, when an image is displayed, the gap GP between the display panels 20 is less visible, even without brightness correction.

In addition, in this embodiment, the heat dissipation film 30 is provided so as to face the rear surface 10S2 of the common wiring substrate 10, so that heat generated in the display panel 20 during operation is quickly dissipated. Furthermore, the heat dissipation wiring 31 is provided from the plurality of display elements 23 to the heat dissipation film 30, so that the heat generated in the display panel 20 can be more quickly conducted to the heat dissipation film 30 and released to the outside.

In addition, in this embodiment, in the display panel 20, pads 24 are provided on the rear surface 21S2 of the support 21, and vias 25 penetrating the support 21 connect the multiple wirings 22 and the pads 24. This makes it possible to shorten the length of the conductive path from the wiring 22 of the display panel 20 to the wiring 11 of the common wiring substrate 10, thereby reducing the wiring resistance.

<<1.2 First Modification>>
5 is a cross-sectional view showing the overall configuration of a display module 101 as a first modified example of the first embodiment. As shown in FIG. 5, the display module 101 further includes an elastic insulating layer 41 between the wiring 22 and the common wiring substrate 10, the elastic insulating layer 41 having a modulus of elasticity smaller than that of the base material 21A of the support 21, for example. The elastic insulating layer 41 is made of, for example, epoxy resin. Also, the vias 25 and the pads 24 are provided at approximately the center of each display panel 20. In the display module 101, the base material 21A is present only in the region surrounding the vias 25 of the support 21, and the elastic insulating layer 41 is provided between the insulating layer 21B and the wiring 11 in the other region. Except for these points, the configuration of the display module 101 as this modified example is substantially the same as the configuration of the display module 1 of the first embodiment.

In this modified example, an elastic insulating layer 41 is further provided, so that the stress applied to each display panel 20 when the entire display module 101 is curved can be alleviated, and mechanical load can be reduced. In addition, the vias 25 and pads 24 are provided at approximately the center of each display panel 20, so that the variation in the stress applied to each display panel 20 can be reduced, and localized stress can be prevented from being applied to a part of each display panel 20. Therefore, adverse effects on display performance can be reduced.

<<1.3 Second Modification>>
Fig. 6 is a cross-sectional view showing the overall configuration of a display module 102 as a second modified example of the first embodiment. As shown in Fig. 6, the display module 102 is provided with a display panel 120 (120A1, 120B1, 120C1) instead of the display panel 20 (20A1, 20B1, 20C1). Except for this point, the configuration of the display module 102 is substantially the same as the configuration of the display module 1 of the first embodiment.

6, in the display module 102 of this modified example, each display panel 120 has a folded portion 27 in each end region where the display panels 120 are folded back so that the front surface 21S faces outward and overlap each other. That is, the insulating layer 21B and wiring 22 provided on the front surface 21AS1 of the substrate 21A are folded back so as to surround the end face of the substrate 21A and extend to the rear surface 21AS2 of the substrate 21A. The wiring 22 can be connected to the wiring 11 provided on the common wiring substrate 10 via a pad 28 provided in a portion sandwiched between the rear surface 21AS2 of the substrate 21A and the common wiring substrate 10.

In the display module 102 of this modified example, the multiple display panels 120 are provided on a single common wiring substrate 10 without overlapping each other, so that no step occurs at the joints between the display panels 120. This provides excellent visibility of the displayed image. In addition, the display module 102 as a whole can be made thin and has excellent flexibility. Therefore, the display module 102 and the display device 100 including multiple display modules can provide both excellent display performance and excellent ease of handling even when enlarged.

2. Second embodiment
<<2.1 Basic Form>>
FIG. 7 is a cross-sectional view showing an example of the overall configuration of a display module 2 according to a second embodiment of the present disclosure. In the display module 1 according to the first embodiment, the display panels 20 are arranged on a common wiring substrate 10 without overlapping each other. In contrast, in the display module 2 according to the present embodiment, as shown in FIG. 7, adjacent display panels 50 are connected in a state in which their ends overlap each other. In FIG. 7, for convenience of explanation, the three display panels 50 arranged in the X-axis direction are labeled 50A, 50B, and 50C from the left. However, the display panels 50A, 50B, and 50C have substantially the same configuration. In addition, the support 61, the base material 61A, the insulating layer 61B, the wiring 62, the display element 63, the pad 64, and the via 65 shown in FIG. 7 correspond to the support 21, the base material 21A, the insulating layer 21B, the wiring 22, the display element 23, the pad 24, and the via 25 in the first embodiment, respectively, and have substantially the same configuration. However, in each display panel 50, the insulating layer 61B protrudes in the -X direction from the substrate 61A to form a first connection portion 51. Also, the substrate 61A protrudes in the +X direction from the insulating layer 61B to form a second connection portion 52. The wiring 62 is provided on a surface 61BS1 of the insulating layer 61B, the pad 64 is provided on a back surface 61BS2 of the insulating layer 61B exposed at the first connection portion 51, and the via 65 penetrates the insulating layer 61B to connect the wiring 62 and the pad 64. Also, in the second connection portion 52, a pad 67 is provided on a surface 61AS1 of the substrate 61A, and the wiring 62 and the pad 67 are connected by a via 66 that penetrates the insulating layer 61B.

In the display module 2, as shown in FIG. 7, each of the display panels 50A, 50B, and 50C includes a first connection portion 51 in which a pad 64 is formed as a first connection terminal, and a second connection portion 52 in which a pad 67 is formed as a second connection terminal. In the display module 2, the first connection portion 51 and the second connection portion 52 are connected to form a connection portion 53 so that the pads 64 and the pads 67 overlap and are electrically connected in the Z-axis direction. Here, it is desirable that the thickness T51 of the first connection portion 51 and the thickness T52 of the second connection portion 52 are thinner than the maximum thickness T50 of the portion of the display panel 50 other than the first connection portion 51 and the second connection portion 52. This is because the thickness T53 of the connection portion 53 between the first connection portion 51 and the second connection portion 52 can be reduced in the display module 2. Furthermore, it is desirable that the thickness T51 of the first connection portion 51 and the thickness T52 of the second connection portion 52 are each less than half the maximum thickness T50. This is because the thickness T53 of the connecting portion 53 between the first connecting portion 51 and the second connecting portion 52 in the display module 2 is equal to or smaller than the maximum thickness T51. In particular, if the sum of the thickness T51 of the first connecting portion 51 and the thickness T52 of the second connecting portion 52 is made equal to the maximum thickness T51, the step in the display module 2 is eliminated, which is even more preferable.

8 is an enlarged cross-sectional view showing the vicinity of the connection portion 53 between the display panels 50 in the display module 2. As shown in FIG. 8, for example, some of the display elements 63 of the display panel 50B are located in a position overlapping both the pad 67 of the display panel 50A and the pad 64 of the display panel 50B in the Z-axis direction. That is, some of the display elements 63 of the display panel 50B are located in a position corresponding to the connection portion 53 between the display panel 50A and the display panel 50B. Although not shown in FIG. 8, similarly, some of the display elements 63 of the display panel 50C are located in a position corresponding to the connection portion 53 between the display panel 50B and the display panel 50C. Here, at least one of the pads 64 and 67 may include anisotropic conductive film ACF. With this configuration, for example, when the display panels 50 are connected to each other during the manufacturing process, the load applied to the connection portion 53 is effectively applied to the joint surface between the pads 64 and 67, resulting in a stronger connection.

In this way, in the display module 2 of this embodiment, the multiple display panels 50 are directly connected by connecting the first connection portion 51 and the second connection portion 52, so that the configuration can be simplified compared to the display module 1 of the first embodiment described above. Furthermore, the thickness T51 of the first connection portion 51 and the thickness T52 of the second connection portion 52 of each display panel 50 are made thinner than the maximum thickness T50 of the display panel 50, so that the display module 2 as a whole can be made thinner.

<<2.2 First Modification>>
9 is an enlarged cross-sectional view showing the connecting portion 53 of a display module 201 as a first modified example of the second embodiment. As shown in FIG. 9, in the display module 201, all the display elements 63 are provided at positions that do not overlap in the Z-axis direction with the connecting portion 53 where the pads 64 and 67 are joined. Except for this point, the configuration of the display module 201 is substantially the same as the configuration of the display module 2 as the second embodiment described above.

In this modified example, due to this configuration, for example, when connecting display panels 50 together during the manufacturing process, the load applied to the connecting portion 53 is less likely to be applied to the display element 63. This makes it possible to prevent the display element 63 from being damaged or falling off from the display panel 50.

3. Third embodiment
Fig. 10 is a schematic diagram showing an example of the overall configuration of a sensor device 300 including a plurality of sensor modules 3 according to a third embodiment of the present disclosure. Fig. 11 is a cross-sectional view showing a main part of the sensor module 3. In the display module 1 of the first embodiment, a plurality of display panels 20 including a plurality of display elements 23 are arranged on a single common wiring substrate 10. In contrast, the sensor module 3 of the present embodiment has a plurality of sensor panels 70 provided on a single common wiring substrate 10 in place of the plurality of display panels 20. Except for this point, the configuration of the sensor module 3 is substantially the same as that of the display module 1.

11, each sensor panel 70 of the sensor module 3 is provided with a plurality of sensor elements 73 instead of the display elements 23. Except for this point, the configuration of the sensor panel 70 is substantially the same as the configuration of the display panel 20. The sensor elements 73 are various sensors such as a pressure sensor, a piezoelectric sensor, a temperature sensor, a vibration sensor, a strain sensor, an optical sensor, a magnetic sensor, or a touch sensor. The sensor elements 73 may further have a drive element including a control circuit such as an IC for driving the sensor.

Since the sensor module 3 has excellent flexibility, it can be installed along the surface shape of a curved three-dimensional structure such as the robot hand shown in FIG. 10. In addition, it can be cut into any shape according to the shape of the installation location and installed in the required part. Even if some of the sensor panels 70 are damaged during use, it is possible to replace only the damaged sensor panels 70. Furthermore, since the sensor module 3 is thin and has excellent flexibility, even if it is installed in a robot hand as shown in FIG. 10, it is possible to avoid interfering with the operation of the robot hand. In addition, by installing multiple sensor panels 70 provided in the sensor module 3 on the common wiring board 10 without overlapping each other as shown in FIG. 11, it is possible to avoid the occurrence of steps along the surface of the structure. Therefore, for example, when the sensor element 73 is a pressure sensor, the variation and error of the detected characteristic value can be reduced.

4. Other Modifications
Although the present disclosure has been described above by way of the embodiment, the present disclosure is not limited to the above embodiment and various modifications are possible. For example, in the display module 1 described in the above embodiment, the display panels 20 each have a rectangular planar shape, but the present disclosure is not limited to this. For example, as in the display panel 80 of the display module 4 as another first modified example shown in FIG. 12, the display panel may be hexagonal, or may be other polygonal, circular, or elliptical. In addition, the planar shapes of the multiple display panels may all be the same, or some or all of the display panels may have planar shapes different from the others. In addition, as in the display panels 81 to 83 shown in (A) to (C) of FIG. 13, the display panel 83 may be arranged so that the outer edge of one polygon is formed by combining multiple divided parts. In addition, the display panel 83 may have a stepped outline portion as shown in the enlarged view of FIG. 13D. Note that FIG. 13D is an enlarged view of the dashed line portion shown in FIG. 13C.

In addition, the dimensions, dimensional ratios, and shapes of each component shown in each figure are merely examples, and the present disclosure is not limited thereto. In addition, each component is not limited to being composed of one part, and may be composed of two or more parts.

Furthermore, for example, the display module 1 described in the above embodiment is not limited to having all the components described, and may lack some components or further include other components. For example, in the display module 1, a protective film such as a transparent resin may be provided to cover the display panel 20.

The display device 100 described in the above embodiment and the like also includes devices that display information both indoors and outdoors. Furthermore, it has potential application to various medical devices (e.g., endoscopic surgery systems, operating room systems, microsurgery systems, etc.).

In this way, according to the display module, the display device, and the sensor module as an embodiment of the present disclosure, it is possible to combine excellent performance and excellent handling. Note that the effects described in this specification are merely examples and are not limited to the description, and other effects may be obtained. In addition, the present technology may have the following configuration.
(1)
a flexible support member including a first surface;
a plurality of flexible display members disposed on the first surface without overlapping each other, each of the flexible display members including a plurality of display elements disposed along the first surface;
(2)
The display module according to (1) above, wherein the flexible display members are arranged spaced apart from each other.
(3)
A display module as described in (1) or (2) above, wherein, among the plurality of display elements provided on the flexible display member, the outermost display element arranged closest to the edge of the flexible display member is arranged at a distance from the edge that is less than half the arrangement pitch of the plurality of display elements.
(4)
The flexible display members are spaced apart from one another,
The following condition (1) is satisfied: W+2×L≦P (1)
The display module according to (3) above.
however,
W: width of the gap between adjacent flexible display members L: distance from the edge of the flexible display member to the position of the outermost display element P: arrangement pitch of multiple display elements (5)
The display module according to any one of (1) to (4), wherein the flexible display member further includes at least one of a sensor element and a drive element.
(6)
The display module according to any one of (1) to (5), wherein the display element is a self-luminous element.
(7)
The display module according to (6) above, wherein the display element is a light-emitting diode.
(8)
Further comprising a flexible heat dissipation substrate;
the flexible support member includes a second surface opposite the first surface;
The display module according to any one of (1) to (7), wherein the flexible heat dissipation substrate is disposed so as to face the second surface.
(9)
The flexible display member is
an insulating support including a third surface that supports the plurality of display elements;
The display module according to any one of (1) to (8), further comprising: a plurality of wirings provided on the third surface and connected to each of the plurality of display elements.
(10)
the support further includes a fourth surface opposite the third surface;
The display module according to claim 9, wherein the flexible display member further includes a pad provided on the fourth surface, and a via that penetrates the insulating support and connects the plurality of wirings to the pad.
(11)
The flexible heat dissipation substrate and the heat dissipation wiring are further included.
the flexible support member includes a second surface opposite the first surface;
the flexible heat dissipation substrate is disposed so as to face the second surface,
The display module according to any one of (1) to (7), wherein the heat dissipation wiring is provided from the plurality of display elements to the flexible heat dissipation substrate.
(12)
The display module according to (9) above, wherein the flexible display member has a folded portion in an end region where the flexible display member is folded back and overlapped so that the third surface faces outward.
(13)
The display module according to (10) above, further comprising an elastic insulating layer between the wiring and the flexible support member, the elastic insulating layer having a modulus of elasticity smaller than that of the insulating support.
(14)
a connection terminal area extending in a second direction perpendicular to the first direction at an end of the first direction;
The display module according to any one of (1) to (13), wherein the connection terminal area has connection terminals of a plurality of wirings each drawn out from the plurality of flexible display members arranged in the first direction.
(15)
a flexible support member including a first surface;
a first and second flexible display member disposed on the first surface, each of the first and second display members including a plurality of display elements disposed along the first surface;
the first flexible display member includes a first connection portion having a first connection terminal formed thereon;
the second flexible display member includes a second connection portion including a second connection terminal overlapping and electrically connected to the first connection terminal in a thickness direction;
A display module, wherein the thickness of the first connection portion and the thickness of the second connection portion are thinner than both the thickness of a portion of the first flexible display member other than the first connection portion and the thickness of a portion of the second flexible display member other than the second connection portion.
(16)
The display module described in (15) above, wherein some of the display elements of the first flexible display member or some of the display elements of the second flexible display member are located at a position in the thickness direction corresponding to a position of a connection area where the first connection terminal and the second connection terminal overlap and are electrically connected.
(17)
The display module described in (15) above, wherein all of the plurality of display elements of the first flexible display member and the plurality of display elements of the second flexible display member are located at positions other than a position corresponding in the thickness direction to a connection area where the first connection terminal and the second connection terminal overlap and are electrically connected.
(18)
The display module according to claim 17, wherein at least one of the first connection terminal and the second connection terminal includes an anisotropic conductive film.
(19)
A display device comprising: a plurality of display modules connected to each other;
Each of the plurality of display modules is
a flexible support member including a first surface;
A display device comprising: a plurality of flexible display members each including a plurality of display elements arranged along the first surface, the display members being arranged on the first surface without overlapping with each other.
(20)
a flexible support member including a first surface;
a plurality of flexible sensor members disposed on the first surface without overlapping each other, each of the flexible sensor members including a plurality of sensor elements disposed along the first surface;

This application claims priority based on Japanese Patent Application No. 2020-88460, filed on May 20, 2020, in the Japan Patent Office, the entire contents of which are incorporated herein by reference.

Those skilled in the art will recognize that various modifications, combinations, subcombinations, and variations may occur to those skilled in the art depending on design requirements and other factors, and that such modifications are within the scope of the appended claims and their equivalents.

Claims (18)

a flexible support member including a first surface;
A plurality of flexible display members each including a plurality of display elements arranged along the first surface, the display members being arranged on the first surface without overlapping each other;
A flexible heat dissipation substrate and a heat dissipation wiring,
the flexible support member includes a second surface opposite the first surface;
the flexible heat dissipation substrate is disposed so as to face the second surface,
the heat dissipation wiring is provided from the plurality of display elements to the flexible heat dissipation substrate. The display module according to claim 1 , wherein the flexible display members are spaced apart from one another. The display module according to claim 1 , wherein, among the plurality of display elements provided on the flexible display member, the outermost display element arranged closest to the edge of the flexible display member is arranged at a distance from the edge that is less than half the arrangement pitch of the plurality of display elements. The flexible display members are spaced apart from one another,
The following condition (1) is satisfied: W+2×L≦P (1)
4. The display module of claim 3.
however,
W: width of the gap between adjacent flexible display members L: distance from the edge of the flexible display member to the position of the outermost display element P: arrangement pitch of multiple display elements The display module according to claim 1, wherein the flexible display member further includes at least one of a sensor element and a drive element. The display module according to claim 1 , wherein the display element is a self-luminous element. The display module according to claim 6 , wherein the display elements are light-emitting diodes. The flexible display member is
an insulating support including a third surface that supports the plurality of display elements;
The display module according to claim 1 , further comprising: a plurality of wirings provided on the third surface and connected to each of the plurality of display elements. the support further includes a fourth surface opposite the third surface;
The display module according to claim 8 , wherein the flexible display member further comprises pads provided on the fourth surface, and vias that penetrate the insulating support and connect the plurality of wirings to the pads. The display module according to claim 8 , wherein the flexible display member has a folded portion at an end region thereof that is folded back and overlaps with the third surface facing outward. The display module according to claim 9 , further comprising an elastic insulating layer between the wiring and the flexible support member, the elastic insulating layer having a modulus of elasticity smaller than that of the insulating support. a connection terminal area extending in a second direction perpendicular to the first direction at an end of the first direction;
The display module according to claim 1 , wherein the connection terminal area includes connection terminals for a plurality of wires that are respectively led out from the plurality of flexible display members that are aligned in the first direction. a flexible support member including a first surface;
A plurality of flexible display members each including a plurality of display elements arranged along the first surface, the display members being arranged on the first surface without overlapping each other;
An elastic insulating layer;
The flexible display member is
an insulating support including a third surface supporting the plurality of display elements and a fourth surface located on the opposite side to the third surface;
a plurality of wirings provided on the third surface and connected to each of the plurality of display elements;
A pad provided on the fourth surface;
vias penetrating the insulating support and connecting the wirings and the pads;
The elastic insulating layer has a modulus of elasticity smaller than that of the insulating support, and is provided between the wiring and the flexible support member. a flexible support member including a first surface;
a first and second flexible display member disposed on the first surface, each of the first and second display members including a plurality of display elements disposed along the first surface;
the first flexible display member includes a first connection portion having a first connection terminal formed thereon;
the second flexible display member includes a second connection portion including a second connection terminal overlapping and electrically connected to the first connection terminal in a thickness direction;
A display module, wherein the thickness of the first connection portion and the thickness of the second connection portion are thinner than both the thickness of a portion of the first flexible display member other than the first connection portion and the thickness of a portion of the second flexible display member other than the second connection portion. The display module according to claim 14 , wherein some of the display elements of the first flexible display member or some of the display elements of the second flexible display member are located at a position in the thickness direction corresponding to a position of a connection region where the first connection terminal and the second connection terminal overlap and are electrically connected. The display module according to claim 14 , wherein all of the plurality of display elements of the first flexible display member and the plurality of display elements of the second flexible display member are located at positions other than a position corresponding in the thickness direction to a connection area where the first connection terminal and the second connection terminal overlap and are electrically connected. The display module of claim 16 , wherein at least one of the first connection terminal and the second connection terminal includes an anisotropic conductive film (ACF). A display device comprising: a plurality of display modules connected to each other;
Each of the plurality of display modules is
a flexible support member including a first surface;
A plurality of flexible display members each including a plurality of display elements arranged along the first surface, the display members being arranged on the first surface without overlapping each other;
A flexible heat dissipation substrate and a heat dissipation wiring,
the flexible support member includes a second surface opposite the first surface;
the flexible heat dissipation substrate is disposed so as to face the second surface,
The display device, wherein the heat dissipation wiring is provided from the plurality of display elements to the flexible heat dissipation substrate.

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