CN111478071B

CN111478071B - Display module

Info

Publication number: CN111478071B
Application number: CN202010383479.7A
Authority: CN
Inventors: 古绍明
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2019-11-27
Filing date: 2020-05-08
Publication date: 2021-10-15
Anticipated expiration: 2040-05-08
Also published as: CN111478071A; TW202121018A; TWI715315B

Abstract

A display module is provided for connecting a control device, and comprises a display panel, a plurality of flexible circuit boards, a circuit board and a plurality of connectors. The display panel comprises a plurality of electronic modules. The flexible circuit board comprises a first connecting end and a second connecting end, the first connecting end is connected to the electronic module and the control device respectively, and the second connecting end comprises a grounding connecting pad. The plurality of connectors are disposed on the circuit board for connecting the second connection terminals of the flexible circuit board, the connectors include a plurality of terminals arranged side by side, wherein the terminals of a first connector include ground terminals, the ground pads of the flexible circuit board corresponding to the first connector are coupled to the ground terminals of the first connector, and the ground pads of the flexible circuit board corresponding to a second connector are also coupled to the ground terminals of the first connector.

Description

Display module

Technical Field

The invention relates to the field of displays, in particular to a display module.

Background

At present, liquid crystal displays have become indispensable products for homes and businesses, and can provide a plurality of additional functions such as internet access, smart televisions, digital assistants and the like in addition to the basic display function. However, modern people pursuing high technology not only meet the functions of the liquid crystal display, but also enjoy the texture of high technology products, so that light, thin and refined models are also the mainstream of the liquid crystal display. In order to add various functions and to have a simple appearance, the internal space of the lcd is limited, and manufacturers often reduce the area of the circuit board to accommodate more electronic devices, but reduce the layout space available on the circuit board.

Disclosure of Invention

The present invention is directed to a display module, which can reduce the number of ground terminals of a connector by sharing the ground terminals of a plurality of connectors, thereby reducing the occupied space required by the connector. Moreover, the plurality of connectors are integrated on the circuit board, so that the space for arranging the connectors on the circuit board can be reduced. In addition to reducing the occupied space of the connector, the method can also reduce the reserved space (or forbidden area) around the connector, so that the limited circuit board space can be effectively utilized. The forbidden region can avoid mutual interference among the elements. The reserved tolerance space can also avoid the problem that the element cannot be arranged on the circuit board due to the wrong setting of the machine for arranging the element. In addition, reducing the number of ground terminals may also reduce signal interference between ground terminals.

In order to achieve the above object, the present invention provides a display module for connecting a control device, the display module includes a display panel, a plurality of flexible circuit boards, a circuit board, and a plurality of connectors. The display panel comprises a plurality of electronic modules. Each flexible circuit board comprises a first connecting end and a second connecting end, the first connecting ends of the flexible circuit boards are respectively connected to the electronic modules and the control device one by one, and the second connecting ends of the flexible circuit boards comprise at least one grounding connecting pad. The plurality of connectors are arranged on the circuit board and used for connecting the second connecting ends of the flexible circuit board one by one, wherein each connector comprises a plurality of terminals side by side. The terminals of a first one of the connectors include at least one ground terminal, at least one ground pad of the flexible circuit board corresponding to a second one of the connectors is coupled to the at least one ground terminal of the first connector, and at least one ground pad of the flexible circuit board corresponding to the first one of the connectors is also coupled to the at least one ground terminal of the first connector.

According to some embodiments, each of the at least one ground terminal includes a first section and a second section, at least one ground pad of the flexible circuit board corresponding to the first connector is coupled to the first section, and at least one ground pad of the flexible circuit board corresponding to the second connector is coupled to the second section.

According to some embodiments, the terminals of the first connector and the terminals of the second connector are arranged side by side on the same axis, and the at least one ground terminal of the first connector is located on a side of the first connector adjacent to the second connector.

According to some embodiments, the second connection end of the flexible circuit board corresponding to the second connector has a protrusion on which at least one ground pad is disposed, and the protrusion is plugged into the first connector.

According to some embodiments, the second connection end of the flexible circuit board corresponding to the first connector has a concave portion complementary to the convex portion, and at least one grounding pad is disposed beside the concave portion.

According to some embodiments, the terminals of the first connector are arranged side by side on a first axis, the terminals of the second connector are arranged side by side on a second axis, wherein the first axis and the second axis are parallel to each other, the first connector and the second connector have a same insertion direction for insertion coupling of the corresponding flexible circuit board, the first connector is located at a downstream side of the insertion direction relative to the second connector, wherein the second connection end of the corresponding flexible circuit board connected to the second connector has a protrusion portion arranged with at least one ground pad, and the protrusion portion is plugged into the first connector.

According to some embodiments, the terminals of the first connector are arranged side by side on a first axis, the terminals of the second connector are arranged side by side on a second axis, the terminals of a third connector in the connector are arranged side by side on a third axis, the first axis, the second axis and the third axis are parallel to each other, and the second connection end of the flexible circuit board, which corresponds to the second connector and the third connector respectively, has a protrusion on which at least one ground pad is arranged to be plugged into the first connector so that the at least one ground pad is coupled to the at least one ground terminal of the first connector.

According to some embodiments, the second connection end of the flexible circuit board corresponding to the first connector has two recesses complementary to and opposite to the protrusions, and at least one grounding pad is disposed between the two recesses.

According to some embodiments, the terminals of the first connector are arranged side by side on a first axis, the terminals of the second connector are arranged side by side on a second axis, wherein the first axis and the second axis are perpendicular to each other, and the second connection end of the flexible circuit board correspondingly connected with the second connector has a convex portion provided with at least one grounding pad, and the convex portion is plugged into the first connector.

According to some embodiments, the terminals of the first connector are arranged side by side on a first axis, the terminals of the second connector are arranged side by side on a second axis, the terminals of a third connector in the connectors are arranged side by side on a third axis, the first axis is perpendicular to the second axis and the third axis, the first connector is located between the second connector and the third connector, the at least one ground terminal of the first connector is disposed on two sides of the first connector, the second connection end of the flexible circuit board corresponding to the second connector and the third connector is respectively provided with a convex part for disposing the at least one ground pad, and the convex parts are respectively inserted on two sides of the first connector so that the at least one ground pad is respectively coupled to the at least one ground terminal on two sides of the first connector.

The invention has the beneficial effects that: the display module can reduce the number of the ground terminals of the connector by sharing the ground terminals of the plurality of connectors, thereby reducing the occupied space required by the connector. Moreover, the plurality of connectors are integrated on the circuit board, so that the space for arranging the connectors on the circuit board can be reduced. In addition to reducing the occupied space of the connector, the method can also reduce the reserved space (or forbidden area) around the connector, so that the limited circuit board space can be effectively utilized. The reserved tolerance space can also avoid the problem that the element cannot be arranged on the circuit board due to the wrong setting of the machine for arranging the element. In addition, reducing the number of ground terminals may also reduce signal interference between ground terminals.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

Fig. 1 is a perspective view of a display module according to some embodiments.

Fig. 1A is an enlarged view of a portion of a flexible circuit board according to some embodiments.

Fig. 1B is an enlarged, partial exploded view of a first connector according to some embodiments.

Fig. 2 is a top view of a flexible circuit board splice of a connector according to some embodiments.

Fig. 3 is an exploded view of a flexible circuit board splice of a connector according to some embodiments.

Fig. 4 is an exploded view of a flexible circuit board stack-up of a connector according to some embodiments.

Fig. 5 is a parallel exploded view of a connector according to some embodiments.

Fig. 5A is a top view of a connector in parallel according to some embodiments.

Fig. 6 is a parallel exploded view of a connector according to some embodiments.

Fig. 7 is an exploded view of a flexible circuit board stack-up of a connector according to some embodiments.

Fig. 7A is a top view of a flexible circuit board stack of a connector according to some embodiments.

Fig. 8 is an exploded view of a flexible circuit board stack-up of a connector according to some embodiments.

Fig. 8A is a top view of a flexible circuit board stack of a connector according to some embodiments.

Fig. 9 is an exploded view of a flexible circuit board stack-up of a connector according to some embodiments.

Fig. 9A is a top view of a flexible circuit board stack of a connector according to some embodiments.

Fig. 10 is an exploded view of a flexible circuit board splice of a connector according to some embodiments.

Fig. 10A is a top view of a flexible circuit board splice of a connector according to some embodiments.

Wherein, the reference numbers:

10 display module 20 control device

30 display panel 31 electronic module

40 flexible circuit board 41 first connection terminal

43 second connection 431 ground pad

433 convex 435 concave part

50 circuit board 60 connector

61 terminal 611 ground terminal

613 first segment 615 second segment

601 first connector 603 second connector

605 third connector 607 fourth connector

70 axis 71 first axis

73 second axis 75 third axis

80 direction of insertion

Detailed Description

The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:

referring to fig. 1, fig. 1 is a perspective view of a display module 10 according to some embodiments. The display module 10 is connected to a control device 20, and the display module 10 includes a display panel 30, a plurality of flexible circuit boards 40, a circuit board 50, and a plurality of connectors 60. The display panel 30 includes a plurality of electronic modules 31. Each of the flexible circuit boards 40 includes a first connection end 41 (shown in fig. 1A) and a second connection end 43, the first connection ends 41 of the flexible circuit boards 40 are respectively connected to the electronic modules 31 and the control device 20 one by one, and the second connection end 43 of the flexible circuit board 40 includes at least one grounding pad 431 (shown in fig. 1B). A plurality of connectors 60 are disposed on the circuit board 50 for connecting the second connection ends 43 of the flexible circuit board 40 one by one, wherein each connector 60 includes a plurality of terminals 61 (shown in fig. 1B) side by side. Herein, the connectors 60 include a first connector 601 and a second connector 603. The terminals 61 of the first connector 601 include at least one ground terminal 611 (as shown in fig. 1B), the ground pad 431 of the flexible circuit board 40 corresponding to the first connector 601 is coupled to the ground terminal 611 of the first connector 601, and the ground pad 431 of the flexible circuit board 40 corresponding to the second connector 603 is also coupled to the ground terminal 611 of the first connector 601. Therefore, the same ground terminals 611 are coupled through the ground pads 431 of the flexible circuit board 40, so that the ground terminals 611 of the connector 60 are shared with each other, and the number of ground terminals 611 required by the connector 60 is reduced, so that the connector 60 can have more terminals 61 to perform other functions.

The display module 10 is suitable for being connected to a control device 20, and the control device 20 is, for example, but not limited to, a Central Processing Unit (CPU), a Microprocessor (Microprocessor), an Application-specific Integrated Circuit (ASIC), a System On Chip (SOC), and the like. In some embodiments, the control device 20 may control the operation of the display module 10.

In some embodiments, the display panel 30 is, for example, but not limited to, a liquid crystal display panel, a Thin film transistor liquid crystal display (TFT-LCD), or the like.

In some embodiments, the electronic module 31 is, for example, but not limited to, a backlight module, a color filter module, a touch module, and the like.

Referring to fig. 1A, fig. 1A is a partial enlarged view of a flexible circuit board 40 according to some embodiments. The first connection terminals 41 of the flexible circuit board 40 are connected to the electronic module 31 and the control device 20 one by one, and the second connection terminals 43 of the flexible circuit board 40 include grounding pads 431 (as shown in fig. 1B). In some embodiments, the Flexible Circuit board 40 may be a Flexible Printed Circuit (FPC), such as a single-layer Flexible Printed Circuit board, a multi-layer Flexible Printed Circuit board, or the like. The first connecting end 41 of the flexible circuit board 40 is used for selectively connecting the electronic module 31 or the control device 20, and the second connecting end 43 is used for connecting a connector 60 (described in detail later) on the circuit board 50, so that the flexible circuit board 40 can be connected between the circuit board 50 and the electronic module 31 or between the circuit board 50 and the control device 20 to transmit signals to each other, for example, the electronic module 31 can receive signals from the control device 20. In some embodiments, the flexible circuit board 40 may be electrically connected to the electronic module 31 via an Anisotropic Conductive Film (ACF).

The aforementioned circuit board 50 may be a Printed circuit board (Printed circuit board), such as a single layer Printed circuit board, a multilayer Printed circuit board, or the like. In some embodiments, the circuit board 50 may be disposed in the bracket using a fixing member. In some embodiments, the circuit board 50 may be disposed under the display panel 30 or the backlight module by folding the flexible circuit board 40.

Referring to fig. 1B, fig. 1B is an enlarged, partially exploded view of a first connector 601 according to some embodiments. A plurality of connectors 60 are provided on the circuit board 50 for connecting the second connection terminals 43 of the flexible circuit board 40 one by one, wherein each connector 60 includes a plurality of terminals 61 side by side. The terminal 61 of the first connector 601 in the connector 60 includes a ground terminal 611, and the ground pad 431 of the flexible circuit board 40 is coupled to the ground terminal 611 to transmit a ground signal, so that the two ends of the flexible circuit board 40 have a common ground potential.

In some embodiments, the plurality of connectors 60 may be implemented in a single body form, and have a plurality of connection ports for connecting the second connection ends 43 of the plurality of flexible circuit boards 40.

In some embodiments, the plurality of connectors 60 are implemented in separate individual forms. Each connector 60 has a connection port for connecting the second connection terminals 43 of the flexible circuit board 40, respectively.

Referring to fig. 2, fig. 2 is a top view of the flexible circuit board 40 splice of a connector 60 according to some embodiments. The terminals 61 of the first connector 601 and the terminals 61 of the second connector 603 are arranged side by side on the same axis 70, and the ground terminal 611 of the first connector 601 is located on the side of the first connector 601 adjacent to the second connector 603, so that the ground pad 431 of the flexible circuit board 40 connected to the second connector 603 can be more easily coupled to the ground terminal 611 of the first connector 601 and the second connector 603 can be more easily closed to each other. In some embodiments, the first connector 601 and the second connector 603 can be close to each other on the same axis 70, so as to reduce the required allowance (or forbidden region) for disposing the connector 60 on the circuit board 50.

Referring to fig. 3, fig. 3 is an exploded view of the flexible circuit board 40 splice of the connector 60 according to some embodiments. In some embodiments, each ground terminal 611 includes a first section 613 and a second section 615, the ground pad 431 of the flexible circuit board 40 corresponding to the first connector 601 is coupled to the first section 613, and the ground pad 431 of the flexible circuit board 40 corresponding to the second connector 603 is coupled to the second section 615, so that a plurality of connectors 60 can share the same ground terminal 611, thereby achieving the ground sharing of the connectors 60 and reducing the number of ground terminals 611 required by the connectors 60. In some embodiments, the first section 613 may be an upper section of the ground terminal 611 and the second section 615 is a lower section of the ground terminal 611. In some embodiments, the first section 613 may be a lower section of the ground terminal 611 and the second section 615 may be an upper section of the ground terminal 611.

In some embodiments, the second connecting end 43 of the flexible circuit board 40 corresponding to the second connector 603 has a protrusion 433 with a grounding pad 431, and the protrusion 433 is plugged into the first connector 601. The ground pad 431 of the protrusion 433 is plugged into the first connector 601 to couple the ground pad 431 to the ground terminal 611 of the first connector 601, so that the ground terminal 611 of the first connector 601 is shared by the first connector 601 and the second connector 603 by coupling the ground pad 431 of the flexible circuit board 40 connected to the second connector 603 to the ground terminal 611 of the first connector 601.

As shown in fig. 3, in some embodiments, the second connection end 43 of the flexible circuit board 40 corresponding to the first connector 601 has a recess 435 complementary to the protrusion 433, and the ground pad 431 is disposed beside the recess 435. When the ground pad 431 of the flexible circuit board 40 correspondingly connecting the first connector 601 and the second connector 603 is coupled to the ground terminal 611, the protrusion 433 and the recess 435 are complementarily engaged with each other, so that the flexible circuit board 40 can be spliced together, the thickness of the flexible circuit board 40 is uniform when the flexible circuit board is plugged into the first connector 601 and the second connector 603, and the assembly of the display module 10 is facilitated due to the uniform thickness. In some embodiments, the first connector 601 and the second connector 603 can be close to each other on the same axis 70, so as to reduce the required allowance (or forbidden region) for disposing the connector 60 on the circuit board 50.

In some embodiments, the ground pad 431 of the protrusion 433 is coupled to the second section 615 of the ground terminal 611, and the ground pad 431 of the flexible circuit board 40 connected to the first connector 601 is coupled to the first section 613 of the ground terminal 611.

Referring to fig. 4, fig. 4 is an exploded view of the stacking of flexible circuit boards 40 of a connector 60 according to some embodiments. The terminals 61 of the first connector 601 are aligned on the same axis 70 as the terminals 61 of the second connector 603. The ground terminal 611 of the first connector 601 is located on a side of the first connector 601 adjacent to the second connector 603. When the ground pads 431 of the flexible circuit boards 40 correspondingly connecting the first connector 601 and the second connector 603 are coupled to the ground terminal 611, the protrusions 433 are inserted into the first connector 601. And the projection 433 is inserted to overlap with the flexible circuit board 40 connected to the first connector 601. Here, the convex portion 433 is located between the first connector 601 and the flexible circuit board 40 connected to the first connector 601.

Referring to fig. 5, fig. 5 is a parallel exploded view of a connector 60 according to some embodiments. The terminals 61 of the first connector 601 are arranged side by side on a first axis 71, the terminals 61 of the second connector 603 are arranged side by side on a second axis 73, wherein the first axis 71 and the second axis 73 are parallel to each other, the first connector 601 and the second connector 603 have the same insertion direction 80 for insertion coupling of the corresponding flexible circuit board 40, the first connector 601 is located at the downstream side of the insertion direction 80 relative to the second connector 603, wherein the second connection end 43 of the flexible circuit board 40 corresponding to the second connector 603 has a protrusion 433 for disposing the ground pad 431, the protrusion 433 is inserted into the first connector 601, when the protrusion 433 is inserted into the first connector 601, the ground pad 431 of the protrusion 433 is coupled to the ground terminal 611 of the first connector 601, and the flexible circuit board 40 connected to the first connector 601 is also coupled to the ground terminal 611 thereof. In some embodiments, when the projection 433 is plugged into the first connector 601, the flexible circuit board 40 connected to the first connector 601 and the flexible circuit board 40 connected to the second connector 603 overlap each other. Here, the flexible circuit board 40 connected to the second connector 603 is located between the first connector 601 and the flexible circuit board 40 connected to the first connector 601. In some embodiments, as shown in fig. 5A, the first connector 601 and the second connector 603 are close to each other, so as to reduce a required allowance (or a forbidden region) for disposing the connector 60 on the circuit board 50.

In some embodiments, the terminals 61 of the first connector 601 are arranged on a first axis 71, the terminals 61 of the second connector 603 are arranged on a second axis 73, the terminals 61 of a third connector 605 of the connector 60 are arranged on a third axis 75, the first axis 71, the second axis 73 and the third axis 75 are parallel to each other, and the second connection end 43 of the flexible circuit board 40 respectively connecting the second connector 603 and the third connector 605 has a protrusion 433 on which the ground pad 431 is arranged, so as to plug into the first connector 601 to couple the ground pad 431 to the ground terminal 611 of the first connector 601. Here, the ground pad 431 of the flexible circuit board 40 connected to the first connector 601 is also coupled to the ground terminal 611 of the first connector 601, so that the ground terminals 611 of the connectors 60 can be shared with each other and the number of ground terminals 611 required for the connectors 60 can be reduced.

Referring to fig. 6, fig. 6 is a parallel exploded view of a connector 60 according to some embodiments. In some embodiments, the second connecting end 43 of the flexible circuit board 40 correspondingly connected to the first connector 601 has two recesses 435 complementary and opposite to the protrusions 433, and a ground pad 431 is disposed between the two recesses 435. When the ground pad 431 of the flexible circuit board 40 correspondingly connecting the first connector 601, the second connector 603 and the third connector 605 is coupled to the ground terminal 611, the protrusion 433 of the flexible circuit board 40 correspondingly connecting the first connector 601 and the second connector 603 and the two recesses 435 are in complementary engagement with each other, and thus the flexible circuit board 40 is assembled, so that the thickness of the flexible circuit board 40 is consistent when the flexible circuit board 40 is connected to the first connector 601, the second connector 603 and the third connector 605, and the assembly of the display module 10 is facilitated due to the consistent thickness.

In some embodiments, the first connector 601, the second connector 603 and the third connector 605 have the same insertion direction 80 for inserting and coupling the corresponding flexible circuit boards 40, the first connector 601 is located at the downstream side of the insertion direction 80 relative to the second connector 603, the second connector 603 is located at the downstream side of the insertion direction 80 relative to the third connector 605, and when the protrusions 433 are inserted into the first connector 601, the flexible circuit boards 40 respectively connecting the first connector 601, the second connector 603 and the third connector 605 overlap each other. Here, the flexible circuit board 40 connected to the second connector 603 is located between the flexible circuit board 40 connected to the third connector 605 and the flexible circuit board 40 connected to the first connector 601, and the flexible circuit board 40 connected to the third connector 605 is located between the flexible circuit board 40 connected to the second connector 603 and the first connector 601.

Referring to fig. 7, fig. 7 is an exploded view of the stacking of flexible circuit boards 40 of a connector 60 according to some embodiments. The terminals 61 of the first connector 601 are arranged side by side on a first axis 71, the terminals 61 of the second connector 603 are arranged side by side on a second axis 73, wherein the first axis 71 and the second axis 73 are perpendicular to each other, and the second connection end 43 of the flexible circuit board 40 correspondingly connected to the second connector 603 has a protrusion 433 provided with a ground pad 431, and the protrusion 433 is plugged into the first connector 601. In some embodiments, the ground terminal 611 of the first connector 601 is located at a position where the projection 433 is inserted. In some embodiments, when the ground pad 431 of the flexible circuit board 40 correspondingly connecting the first connector 601 and the second connector 603 is coupled to the ground terminal 611, the protrusion 433 is inserted into the first connector 601, and the protrusion 433 is inserted to overlap with the flexible circuit board 40 connected to the first connector 601. Here, the convex portion 433 is located between the first connector 601 and the flexible circuit board 40 to which the first connector 601 is connected. In some embodiments, as shown in fig. 7A, the first connector 601 and the second connector 603 are close to each other, so as to reduce the required allowance (or forbidden region) for disposing the connector 60 on the circuit board 50.

Referring to fig. 8, fig. 8 is an exploded view of the stacking of flexible circuit boards 40 of a connector 60 according to some embodiments. The terminals 61 of the first connector 601 are arranged side by side on a first axis 71, the terminals 61 of the second connector 603 are arranged side by side on a second axis 73, the terminals 61 of a third connector 605 in the connector 60 are arranged side by side on a third axis 75, the first axis 71 is perpendicular to the second axis 73 and the third axis 75, respectively, the first connector 601 is located between the second connector 603 and the third connector 605, the ground terminals 611 of the first connector 601 are respectively arranged on two sides of the first connector 601, the second connection ends 43 of the flexible circuit board 40 corresponding to the second connector 603 and the third connector 605 are respectively provided with a convex portion 433 on which the ground pads 431 are arranged, and the convex portions 433 are respectively inserted on two sides of the first connector 601 so that the ground pads 431 are respectively coupled to the ground terminals 611 on two sides of the first connector 601. In some embodiments, when the ground pad 431 of the flexible circuit board 40 correspondingly connected to the first connector 601, the second connector 603 and the third connector 605 is coupled to the ground terminal 611, the protrusions 433 are inserted into the first connector 601, and the protrusions 433 are inserted to overlap with the flexible circuit board 40 connected to the first connector 601. Here, the convex portion 433 is located between the first connector 601 and the flexible circuit board 40 to which the first connector 601 is connected. In some embodiments, as shown in fig. 8A, the first connector 601, the second connector 603, and the third connector 605 are close to each other, so as to reduce the required allowance (or forbidden region) for disposing the connector 60 on the circuit board 50.

Referring to fig. 9, fig. 9 is an exploded view of the stacking of flexible circuit boards 40 of connectors 60 according to some embodiments. In some embodiments, the terminals 61 of the first connector 601 are arranged on the second axis 73, the terminals 61 of the second connector 603 are arranged on the second axis 73, the terminals 61 of the third connector 605 are arranged on the third axis 75, the second axis 73 is parallel to the third axis 75, the ground terminals 611 of the first connector 601 are arranged on the side of the first connector 601 adjacent to the second connector 603 and the third connector 605, the second connector 603 and the third connector 605 have the same insertion direction 80 for the insertion coupling of the corresponding flexible circuit board 40, the second connector 603 is arranged on the downstream side of the insertion direction 80 relative to the third connector 605, wherein the second connection terminal 43 of the flexible circuit board 40 correspondingly connected to the second connector 603 and the third connector 605 has a protrusion 433 with a grounding pad 431, to be plugged into the first connector 601, so that the ground pad 431 is coupled to the ground terminal 611 of the first connector 601. In some embodiments, when the ground pad 431 of the flexible circuit board 40 correspondingly connected to the first connector 601, the second connector 603 and the third connector 605 is coupled to the ground terminal 611, the protrusions 433 are inserted into the first connector 601, and the protrusions 433 are inserted to overlap with the flexible circuit board 40 connected to the first connector 601. Here, the protrusions 433 are located between the first connector 601 and the flexible circuit board 40 connected to the first connector 601. In some embodiments, the protrusions 433 do not overlap with each other after insertion. In some embodiments, the protrusions 433 are inserted and overlapped with the flexible circuit board 40 connected to the second connector 603 and the third connector 605, respectively. In some embodiments, as shown in fig. 9A, the first connector 601, the second connector 603, and the third connector 605 are close to each other, so as to reduce the required allowance (or forbidden region) for disposing the connector 60 on the circuit board 50.

Referring to fig. 10, fig. 10 is an exploded view of the flexible circuit board 40 splice of the connector 60 according to some embodiments. In some embodiments, the terminals 61 of the first connector 601 and the terminals 61 of the second connector 603 are arranged side by side on a first axis 71, the terminals 61 of the third connector 605 and the terminals 61 of a fourth connector 607 of the connectors 60 are arranged side by side on a second axis 73, the first axis 71 and the second axis 73 are parallel to each other, the second connection end 43 of the flexible circuit board 40 respectively connecting the second connector 603 and the fourth connector 607 has a convex portion 433 on which the ground pad 431 is arranged, the second connection end 43 of the flexible circuit board 40 respectively connecting the first connector 601 and the third connector 605 has a concave portion 435 complementary to the convex portion 433 on which the ground pad 431 is arranged, and the ground pad 431 is arranged beside the concave portion 435. When the ground pads 431 of the flexible circuit board 40 correspondingly connecting the first connector 601, the second connector 603, the third connector 605 and the fourth connector 607 are coupled to the ground terminals 611, the protrusions 433 and the recesses 435 are complementarily engaged with each other, so that the flexible circuit boards 40 can be spliced together, the thickness of the flexible circuit board 40 when being spliced to the first connector 601, the second connector 603, the third connector 605 and the fourth connector 607 is uniform, and the assembly of the display module 10 is facilitated by the uniform thickness. In some embodiments, as shown in fig. 10A, the first connector 601, the second connector 603, the third connector 605 and the fourth connector 607 can be close to each other, so as to reduce the required allowance (or forbidden region) for disposing the connector 60 on the circuit board 50.

Therefore, according to some embodiments, the display module can reduce the number of ground terminals of the connector by sharing the ground terminals of the plurality of connectors, thereby reducing the occupied space required by the connector. Moreover, the plurality of connectors are integrated on the circuit board, so that the space for arranging the connectors on the circuit board can be reduced. In addition to reducing the occupied space of the connector, the method can also reduce the reserved space (or forbidden area) around the connector, so that the limited circuit board space can be effectively utilized. And the allowance of the tolerance space can also avoid the problem that the element cannot be arranged on the circuit board due to the wrong setting of the machine for arranging the element. In addition, reducing the number of ground terminals may also reduce signal interference between ground terminals.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A display module for connecting to a control device, the display module comprising:

a display panel including a plurality of electronic modules;

the flexible circuit boards comprise a first connecting end and a second connecting end, the first connecting ends of the flexible circuit boards are respectively connected to the electronic modules and the control device one by one, and the second connecting ends of the flexible circuit boards comprise at least one grounding connecting pad;

a circuit board; and

a plurality of connectors arranged on the circuit board for connecting the second connecting ends of the flexible circuit boards one by one, wherein each connector comprises a plurality of terminals in parallel;

the terminals of a first connector of the connectors include at least one ground terminal, each of the at least one ground terminal includes a first section and a second section, the at least one ground pad of the flexible circuit board correspondingly connected to the first connector is coupled to the first section, and the at least one ground pad of the flexible circuit board correspondingly connected to a second connector of the connectors is coupled to the second section.

2. The display module of claim 1, wherein the terminals of the first connector and the terminals of the second connector are side-by-side on a same axis, the at least one ground terminal of the first connector being located on a side of the first connector adjacent to the second connector.

3. The display module as claimed in claim 2, wherein the second connecting terminal of the flexible circuit board corresponding to the second connector has a protrusion for disposing the at least one ground pad, and the protrusion is inserted into the first connector.

4. A display module as claimed in claim 3, characterized in that the second connection end of the flexible circuit board, which corresponds to the first connector, has a recess which is complementary to the projection, the at least one ground pad being arranged beside the recess.

5. The display module as claimed in claim 1, wherein the terminals of the first connector are arranged side by side on a first axis, the terminals of the second connector are arranged side by side on a second axis, wherein the first axis and the second axis are parallel to each other, the first connector and the second connector have a same insertion direction for insertion coupling of the corresponding flexible circuit board, the first connector is located at a downstream side of the insertion direction relative to the second connector, wherein the second connection end of the flexible circuit board corresponding to the second connector has a protrusion for disposing the at least one ground pad, and the protrusion is inserted into the first connector.

6. The display module as recited in claim 1, wherein the terminals of the first connector are aligned on a first axis, the terminals of the second connector are aligned on a second axis, the terminals of a third connector of the plurality of connectors are aligned on a third axis, the first axis, the second axis and the third axis are parallel to each other, and the second connection end of the flexible circuit boards respectively connecting the second connector and the third connector has a protrusion for disposing the at least one ground pad for plugging into the first connector to couple the at least one ground pad to the at least one ground terminal of the first connector.

7. The display module as claimed in claim 6, wherein the second connecting end of the flexible circuit board correspondingly connected to the first connector has two recesses complementary to and opposite to the protrusions, and the at least one ground pad is disposed between the two recesses.

8. The display module as claimed in claim 1, wherein the terminals of the first connector are arranged side by side on a first axis, the terminals of the second connector are arranged side by side on a second axis, wherein the first axis and the second axis are perpendicular to each other, and wherein the second connection end of the flexible circuit board corresponding to the second connector has a protrusion on which the at least one ground pad is arranged, the protrusion being plugged into the first connector.

9. The display module of claim 8, wherein the terminals of the first connector are side by side along a first axis, the terminals of the second connector are arranged side by side on a second axis, the terminals of a third connector of the connectors are arranged side by side on a third axis, the first axis is perpendicular to the second axis and the third axis, the first connector is located between the second connector and the third connector, the at least one grounding terminal of the first connector is respectively arranged at two sides of the first connector, the second connecting ends of the flexible circuit boards correspondingly connected with the second connector and the third connector are respectively provided with a convex part for laying the at least one grounding pad, the convex parts are respectively inserted into two sides of the first connector so that the at least one grounding pad is respectively coupled with the at least one grounding terminal at two sides of the first connector.